A witness considered crucial to the Crown's case will be cross-examined Friday at the trial of two men who are accused of killing and incinerating Toronto woman Laura Babcock.

Rogers says in commercial cremation, bones are sort of sifted, to crush them into dust, like you'd see in an urn. The bones themselves don't burn off -- they just become more brittle, and are crushed.

by Adam Carter11/10/2017 8:09:39 PM

One of the bones was similar to a human radius bone, Rogers says, likely a left outer forearm.

by Adam Carter11/10/2017 8:10:43 PM

Rogers says the end of one of the objects looks similar to the wrist end of the radius bone.

by Adam Carter11/10/2017 8:12:19 PM

Rogers says she "can't say for certain" that this is a human radius though. Again, she's just going on a photo.

by Adam Carter11/10/2017 8:13:06 PM

Cameron now asking if this bone is at all similar to a deer radius bone.

by Adam Carter11/10/2017 8:13:46 PM

Rogers says a human radius extends a little further, the two sides aren't the same. On the deer radius, things are more equal.

by Adam Carter11/10/2017 8:14:57 PM

Rogers now talking about comparing measurements of bones.

by Adam Carter11/10/2017 8:17:26 PM

Rogers says that she actually got a human bone and a deer bone from the university's collection and compared them both, for this exercise.

by Adam Carter11/10/2017 8:18:56 PM

Rogers took measurements from the gridded photo. She says it was 25 mm. On average, a US female average for that bone was 27 mm.

by Adam Carter11/10/2017 8:21:36 PM

The same measurement for a deer was 39 mm, Rogers says.

by Adam Carter11/10/2017 8:22:15 PM

Rogers has zoomed in on one portion of the photo to highlight an area.

by Adam Carter11/10/2017 8:23:42 PM

Rogers says based on the shape comparison, another object in the Eliminator is similar to the human humerus bone, which is in the upper arm, and connects to the elbow.

by Adam Carter11/10/2017 8:26:53 PM

We're now seeing a photo of two more bones -- a human humerus, and a deer humerus as a comparison. The human one has a much more oval impression in the centre, where the bones lock in at the joint.

by Adam Carter11/10/2017 8:30:09 PM

Rogers says based on a width measurement from the photo, it looks like a human humerus.

by Adam Carter11/10/2017 8:32:28 PM

She says the average for the width of this specific section of bone for a white female is 55.1 mm. For deer, it's 39.15 mm.

by Adam Carter11/10/2017 8:37:04 PM

IN the photo, rogers estimates the bone measurement is around 50 mm.

by Adam Carter11/10/2017 8:37:57 PM

Rogers says she can't say for certain, but says there are similarities between human bones and the object found in the incinerator.

by Adam Carter11/10/2017 8:38:52 PM

The Crown is now done with its examination in chief of Dr. Rogers.

by Adam Carter11/10/2017 8:40:14 PM

Code says Dungey and Millard have the weekend to prepare their cross-examinations for Dr. Rogers. So we're done for the day. We're not sitting on Monday because of the civic holiday for Remembrance Day on Monday. We're back at 10 a.m. on Tuesday.